Index: cfe/trunk/lib/Format/TokenAnnotator.cpp
===================================================================
--- cfe/trunk/lib/Format/TokenAnnotator.cpp
+++ cfe/trunk/lib/Format/TokenAnnotator.cpp
@@ -2006,6 +2006,9 @@
     if ((Left.is(TT_TemplateString) && Left.TokenText.endswith("${")) ||
         (Right.is(TT_TemplateString) && Right.TokenText.startswith("}")))
       return 100;
+    // Prefer breaking call chains (".foo") over empty "{}", "[]" or "()".
+    if (Left.opensScope() && Right.closesScope())
+      return 200;
   }
 
   if (Right.is(tok::identifier) && Right.Next && Right.Next->is(TT_DictLiteral))
Index: cfe/trunk/unittests/Format/FormatTestJS.cpp
===================================================================
--- cfe/trunk/unittests/Format/FormatTestJS.cpp
+++ cfe/trunk/unittests/Format/FormatTestJS.cpp
@@ -841,6 +841,15 @@
 
 }
 
+TEST_F(FormatTestJS, DontWrapEmptyLiterals) {
+  verifyFormat("(aaaaaaaaaaaaaaaaaaaaa.getData as jasmine.Spy)\n"
+               "    .and.returnValue(Observable.of([]));");
+  verifyFormat("(aaaaaaaaaaaaaaaaaaaaa.getData as jasmine.Spy)\n"
+               "    .and.returnValue(Observable.of({}));");
+  verifyFormat("(aaaaaaaaaaaaaaaaaaaaa.getData as jasmine.Spy)\n"
+               "    .and.returnValue(Observable.of(()));");
+}
+
 TEST_F(FormatTestJS, InliningFunctionLiterals) {
   FormatStyle Style = getGoogleStyle(FormatStyle::LK_JavaScript);
   Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_Inline;